Indoor Air Quality & Radon Resources

Compare short-term kits, long-term kits and continuous radon monitors on accuracy, cost and time to results, and find the right radon detector for your home.

Why mold grows indoors, where it hides, the humidity level that stops it (below 60%), its health effects, and how to clean it up and keep it from coming back.

Pollen seasons are now 20 days longer. See when tree, grass and weed pollen peak, how pollen gets into your home, and simple ways to reduce it indoors.

Waking up groggy? See how bedroom CO₂, humidity, VOCs and PM2.5 affect your sleep, the levels to aim for, and simple fixes you can make tonight.

7 ways to lower VOCs at home: cut sources, air out new furniture, ventilate, store chemicals safely, and use carbon filtration. See what levels mean.

What are VOCs? Where they come from (paint, furniture, cleaning products), how they affect health, what TVOC levels mean, and how to lower them at home.

How much does a radon mitigation system cost? See typical prices ($800 - $2,500), what affects the price, what you can DIY, and how to check your system is working.

How to test for radon at home: when to test, which radon test to use (kits vs digital monitors), where to place it, how long to test, and what your results mean.

What a radon map can and can't tell you: EPA zones 1–3, Health Canada's 200 Bq/m³ guideline, and why every home still needs its own radon test.

High radon? See which DIY radon mitigation steps actually work, when you need a professional sub-slab system, what it costs, and how to check your fix worked.